A scientist works with DNA samples in a New Orleans laboratory in 2011.
(AP Photo/Gerald Herbert)
The rapid growth of genetic testing and data-gathering could revolutionize health and medicine if governments work to protect people against privacy and societal risks.
As cities in developing countries - like Lagos in Nigeria, pictured here - grow, so do obesity risks.
Governments must understand that the factors making cities convenient and productive also make their residents prone to obesity. They must confront this challenge with intelligent, focused policies.
African governments efforts to improve health are being undermined by corporations luring clientele.
Unhealthy food corporations use various tactics to undermine public health policies aimed at tackling the scourge of non-communicable diseases like diabetes and obesity.